"It was horrible, horrible," Clements said. "I woke up to lots of gun shots. I would say at least 30 and screaming."

Police arrived moments later to find the victims.

Police said shots were fired after a fight at the event center spilled out into the parking lot.

David Welch has lived across the street for 30 years.

He said seeing police investigate a double-homicide there is unsettling.

"When you have something 200 feet away, it's very concerning," Welch said. "It should be farther away from residential areas."

Police said this isn't the first time they have been called out the event center.

In June, they said security guards called them after a fight broke out.

The owner of The Pulse, Dean Smith, released this statement after the double homicide:

"The Pulse Event Center is a very nice and safe venue, used for many wonderful weddings, receptions, charitable fundraisers, banquets, school dances and other gatherings. We have a church using our facility along with a youth ministry on a weekly basis. I'm available to address any concerns for the surrounding neighborhood has. My heart and prayers go out to the families affected by this tragedy."

If you have any information that could help police find the shooter, call the Homicide Tip Line at (405) 297-1200.